Vedic astrology calculator
Navamsa Calculator
The navamsa (D9) divides each sign of the sidereal zodiac into nine parts of 3°20′. Enter a birth date, time and time zone to see the sign and the navamsa of the Sun, Moon, planets, Rahu and Ketu, in a table and in two charts side by side.
What is the navamsa?
The navamsa (Sanskrit navāṃśa, “ninth part”) is the D9, one of the divisional charts (vargas) of Jyotiṣa. Each sign of 30° is divided into nine parts of 3°20′, and each part belongs to a sign of its own. The sign a planet falls in by this division is its navamsa.
In the tradition the navamsa is read next to the sign chart as a finer view of the same positions. What it is taken to say about a person belongs to that tradition, and we do not draw such conclusions here.
How the parts are assigned
The nine parts of a sign run through the signs of the zodiac one after another. The first part starts at a sign that depends on the element of the sign being divided:
- Fire signs (Aries, Leo, Sagittarius): the first part is Aries.
- Earth signs (Taurus, Virgo, Capricorn): the first part is Capricorn.
- Air signs (Gemini, Libra, Aquarius): the first part is Libra.
- Water signs (Cancer, Scorpio, Pisces): the first part is Cancer.
This is the same as counting the 108 parts of 3°20′ continuously around the zodiac from 0° Aries. It also ties the navamsa to the pada of the nakshatra: a pada is 3°20′ wide as well, so the four padas of one nakshatra fall in four consecutive navamsa signs.
Vargottama
A planet is called vargottama when its navamsa sign is the same as its sign. This happens in the first part of a movable sign (Aries, Cancer, Libra, Capricorn), the fifth part of a fixed sign (Taurus, Leo, Scorpio, Aquarius) and the ninth part of a dual sign (Gemini, Virgo, Sagittarius, Pisces). In the tradition it is regarded as strengthening the planet; we only show where it occurs.
Choices we made
- Ayanamsa: Lahiri (Chitrapaksha), 24°13′ on January 1, 2026; you can switch to Raman, Krishnamurti, Fagan-Bradley or True Chitrapaksha, and the value used is always shown.
- Positions: geocentric (seen from the center of the Earth) and sidereal. The navamsa follows from the sidereal longitude, so another ayanamsa can move a planet near a boundary into another navamsa.
- Rahu and Ketu: the mean node.
- Time: your birth time in the time zone you choose; without a time we use 12:00.
What this page does not do
It gives positions, not predictions. Without a birth place and time there is no Lagna and so no navamsa Lagna; with them the Lagna and its navamsa are shown, but we show no houses and do not interpret the charts.
Sources
- Parāśara, Bṛhat Parāśara Horā Śāstra, the classical text on the divisional charts (translation by R. Santhanam, Ranjan Publications).
- Kim Plofker, Mathematics in India (Princeton University Press, 2009).
- David Pingree, Jyotiḥśāstra: Astral and Mathematical Literature (Otto Harrassowitz, 1981).
- Swiss Ephemeris documentation, table of ayanamsa systems (values for Lahiri, Raman, Krishnamurti and Fagan-Bradley).
- Astronomy Engine (positions of the Sun, Moon and planets).